JPS6124871A - Stepless speed changer - Google Patents

Stepless speed changer

Info

Publication number
JPS6124871A
JPS6124871A JP14401984A JP14401984A JPS6124871A JP S6124871 A JPS6124871 A JP S6124871A JP 14401984 A JP14401984 A JP 14401984A JP 14401984 A JP14401984 A JP 14401984A JP S6124871 A JPS6124871 A JP S6124871A
Authority
JP
Japan
Prior art keywords
speed change
output shaft
input shaft
axial direction
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14401984A
Other languages
Japanese (ja)
Other versions
JPH0434021B2 (en
Inventor
Manabu Kashiwara
学 柏原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shinpo Kogyo KK
Original Assignee
Shinpo Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shinpo Kogyo KK filed Critical Shinpo Kogyo KK
Priority to JP14401984A priority Critical patent/JPS6124871A/en
Publication of JPS6124871A publication Critical patent/JPS6124871A/en
Publication of JPH0434021B2 publication Critical patent/JPH0434021B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/48—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members with members having orbital motion
    • F16H15/50—Gearings providing a continuous range of gear ratios
    • F16H15/52—Gearings providing a continuous range of gear ratios in which a member of uniform effective diameter mounted on a shaft may co-operate with different parts of another member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)

Abstract

PURPOSE:To prevent noise and vibration by allowing a planetary differential to generate a thrust force of a magnitude in accordance with the torque on output shaft and by furnishing a cam device to put the output disc in pressure contact with an intermediate roller. CONSTITUTION:Rotation of an input shaft 1 is transmitted to a conical rotor 3 via an disc on the input shaft side 7. A speed change ring 4, which is capable of moving in the axial direction and changes its revolving speed accordingly, is in slide contact with the conical surface of said rotor. Rotation of this speed change ring is transmitted through a disc 8 on output shaft side and a cam device 12, wherein the cam device is to generate a thrust force of a magnitude in compliance with the torque on the output shaft 2. Thus the output disc is pressed to an intermediate roller 10 to accomplish sure transmission of power.

Description

【発明の詳細な説明】 Ａ、発明の目的 産業上の利用分野： ・　主として車両用変速機、特に自動車用変速機の分野
に利用される。[Detailed Description of the Invention] A. Field of industrial application of the invention: - Mainly used in the field of vehicle transmissions, particularly automobile transmissions.

従来の技術： 特開昭５７−４７０６１号公報に記載される車両用無段
変速機は、出力軸に正負例れの方向の回転も与え得ると
共に、出力軸が入力軸に直結された状態を作ることがで
きる。このものは、第６図に示す如く、変速作用部Ｘと
遊星車型差動装置Ｙとを組合せたもので、遊星車型差動
装置は、変速作用部の出力部材に与えられる回転速度の
範囲（Ｎ、〜ａＮ１．但し、Ｎ、け入力軸の回転速度、
ａは１より小さい正の数）を変換して出力軸の回転速度
の範囲をＮ、〜１）Ｎ、　（但し、ｂは負の数）にする
。Conventional technology: The continuously variable transmission for vehicles described in Japanese Patent Application Laid-Open No. 57-47061 can provide rotation in both positive and negative directions to the output shaft, and can also rotate the output shaft in a state in which it is directly connected to the input shaft. can be made. As shown in FIG. 6, this device is a combination of a speed change acting section X and a planetary wheel type differential device Y. The planetary wheel type differential device has a rotational speed range ( N, ~aN1. However, N is the rotation speed of the input shaft,
(a is a positive number smaller than 1) is converted to make the range of the rotational speed of the output shaft N, to 1)N (where b is a negative number).

この変速機の利点は、歯車を使用するリバース系を必要
としない点、出力軸を入力軸に直結させるクラッチを必
要としない点にある。The advantage of this transmission is that it does not require a reverse system that uses gears, and it does not require a clutch that directly connects the output shaft to the input shaft.

変速作用部Ｘにおける摩、擦保合部に圧接力を発生させ
る圧接力発生装置２は遊星車型差動装置゛Ｙには直接の
関係をもたないものとして設けられる。A pressing force generating device 2 that generates a pressing force on the friction and friction retaining portion in the speed change acting portion X is provided as having no direct relation to the planetary wheel type differential device Y.

発明が解決しようとする問題点： 上記の遊星車型差動装置についてはそれを摩擦伝動形式
のものとして運転が静粛に行われるようにすることも考
えられるが、その場合ｔこは遊星車型差動装置における
摩擦係合部に必要とする圧接力を発生する圧接力発生装
置をどのような態様の下に設けるかについての問題が生
じる。Problems to be Solved by the Invention: Regarding the above planetary wheel type differential device, it is possible to use a friction transmission type to ensure quiet operation, but in that case, the planetary wheel type differential device may be used. A problem arises as to how to provide a pressure-contact force generating device that generates the necessary pressure-contact force to the frictional engagement portion of the device.

本発明は、上記遊星車型差動装置と同様の動作を行うも
のを摩擦伝動形式のものとすると共に、それが変速作用
部に対する圧接力発生装置の一部となっているようにし
、それにより、変速作用部のみならず差動装置も摩擦伝
動形式のものとされたものを構成が比較的単純なものと
して提供することを目的とする。The present invention uses a friction transmission type differential device that performs the same operation as the planetary wheel type differential device, and also makes it a part of the pressure generating device for the speed change action section. It is an object of the present invention to provide a relatively simple configuration in which not only the speed change operation part but also the differential device is of a friction transmission type.

Ｂ、発明の構成 問題点を解決するための手段： 本発明は、軸線方向に動き得る状態において入力軸に駆
動連結される入力軸側円板と、軸線方向に動き得る状態
において出力軸に駆動連結される出力軸側円板と、これ
らの円板間に複数個配置されていて動力の伝達作用と推
力の伝達作用とを行う中間ローラと、中間ローラの支持
を行いつつ変速リングと共に回転するキャリアと、出力
軸側円板の外側に配置されていて出力軸側円板、中間ロ
ーラおよび入力軸側円板を経て変速作用部に推力を及ぼ
すカム装置とにより変速作用部に組合される差動装置を
構成するものである。上記変速作用部は、”円錐形転子
の円錐面に摩擦係合する変速リングが出力部材とされ変
速リングを軸線方向に動かすことによシ変速リングの回
転速度が変えられる形式のもの″である。B. Structure of the Invention Means for Solving the Problems: The present invention provides an input shaft-side disc that is drive-coupled to the input shaft in a state where it can move in the axial direction, and a disc that is drive-coupled to the output shaft in a state where it can move in the axial direction. A connected output shaft side disk, a plurality of intermediate rollers arranged between these disks that perform power transmission and thrust transmission, and a gear ring that rotates together with the speed change ring while supporting the intermediate roller. A differential that is combined in the speed change action section by the carrier and a cam device that is placed outside the output shaft side disk and applies thrust to the speed change action section via the output shaft side disk, intermediate roller, and input shaft side disk. It constitutes a moving device. The above-mentioned speed change acting section is of a type in which the output member is a speed change ring that frictionally engages with the conical surface of the conical trochanter, and the rotational speed of the speed change ring can be changed by moving the speed change ring in the axial direction. be.

作用。Action.

上記のカム装置、出力軸側および入力軸側円板、中間ロ
ーラおよびキャリアを含む系は変速作用部の圧接力発生
装置であると共に、それ自体が摩擦伝動形式の差動装置
を構成する。すなわち、変速作用部の出力部材としての
変速リングの回転速度範囲の変換用差動装置は変速作用
部の圧接力発生装置を利用しつつ摩擦伝動形式のものと
されているのである。The system including the cam device, the discs on the output shaft side and the input shaft side, the intermediate roller, and the carrier is a pressing force generating device of the speed change action section, and itself constitutes a friction transmission type differential device. That is, the differential device for converting the rotational speed range of the speed change ring as an output member of the speed change action section is of a friction transmission type while utilizing the pressure generating device of the speed change action section.

実施例： 第１図は上記本発明による無段変速機を示す。この図に
おいて、（１）は入力軸、（２）は出力軸、（３）は円
錐形転子、（４）は円錐形転子（３）に摩擦係合する変
速リングで、出力部材としての変速リング（４）の回転
速度は変速リング（４）を油圧シリンダ１５）により軸
線方向に動かすことにより変えられる。（６）は本発明
により摩擦伝動形式の差動装置で、このものの要部は第
２図に符号を付して示される。Embodiment: FIG. 1 shows the continuously variable transmission according to the present invention. In this figure, (1) is an input shaft, (2) is an output shaft, (3) is a conical trochanter, and (4) is a speed change ring that frictionally engages with the conical trochanter (3), which serves as an output member. The rotational speed of the speed change ring (4) can be changed by moving the speed change ring (4) in the axial direction using a hydraulic cylinder 15). Reference numeral (6) is a friction transmission type differential device according to the present invention, and the main parts of this device are shown with reference numerals in FIG.

第２図において、（７）は入力軸側円板、（８）は出力
軸側円板である。入力軸側円板（７）は入力軸（１）に
より回転される部材（９）にスプライン係合させられる
。In FIG. 2, (7) is a disc on the input shaft side, and (8) is a disc on the output shaft side. The input shaft side disc (7) is splined to a member (9) rotated by the input shaft (1).

出力軸側円板（８）と入力軸（１）との間には空隙が存
在する。入力軸側円板（７）と出力軸側円板（８）とは
軸線方向に移動することができる伝動要素である。入力
軸側円板（７）と出力軸側円板（８）との間には複数個
のものは変速リング（４）と共に回転する。（１７Ｉは
出力軸側円板（８）の外側に配置されたカム装置で、出
力軸（２）に加わるトルクの大きさに応じた大きさの推
力を発生する。中間ローラ叫は動力の伝達作用を行う要
素であると共に推力の伝達作用を行う要素である。カム
装置α々と、入力軸側円板（７）および出力軸側円板（
８）と、中間ローラα臼と、キャリアαｌ）とよ構成る
系は差動装置を構成する。この差動装置は、さきに指摘
した特開昭５７−４７０゛６１号公報に示される”遊星
車型差動装置”と同様の作用を行い、変速作用部がその
出力部材としての変速リング（４）に与える変速範囲“
Ｎ１〜ａＮ、′を変えて”Ｎ１〜−ｂＮ、°′の変速範
囲が出力軸（２）に与えられるようにする。（Ｎ、は入
力軸の回転速度、ａ、ｂは１より小さい正数である。） Ｃ１発明の効果 以上において説明した本発明によるものは変連作用部と
差動装置とが組合された無段変速機の差動装置を摩擦伝
動形式のものとするに当り、変速作用部に対する圧接力
発生装置を兼ねる差動装置を設けているものである。本
発明によるものにおいて設けられる差動装置の構成要素
は単純で作り易い形状のものである。A gap exists between the output shaft side disc (8) and the input shaft (1). The input shaft side disk (7) and the output shaft side disk (8) are transmission elements that can move in the axial direction. A plurality of discs are provided between the input shaft side disk (7) and the output shaft side disk (8) and rotate together with the speed change ring (4). (17I is a cam device placed on the outside of the output shaft side disk (8), which generates a thrust corresponding to the amount of torque applied to the output shaft (2). The intermediate roller scream is used to transmit power. It is an element that performs an action as well as an element that transmits thrust.The cam device α, the input shaft side disc (7) and the output shaft side disc (
8), the intermediate roller α die, and the carrier αl) constitute a differential gear. This differential device performs the same function as the "planetary type differential device" shown in Japanese Patent Application Laid-open No. 57-470-61 mentioned earlier, and the speed change acting part is the speed change ring (4) as its output member. ) “
Change N1 to aN,' so that a shifting range of "N1 to -bN, °' is given to the output shaft (2). (N is the rotational speed of the input shaft, and a and b are positive values smaller than 1. C1 Effects of the Invention The present invention explained above provides a friction transmission type differential device for a continuously variable transmission in which a variable linkage unit and a differential device are combined. A differential device is provided which also serves as a press force generating device for the speed change action section.The components of the differential device provided in the device according to the present invention are simple and easy to manufacture.

本発明による無段変速機は騒音および振動の発生が抑制
され、運転が静粛に行われる。The continuously variable transmission according to the present invention suppresses the generation of noise and vibration, and operates quietly.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明による無段変速機の縦断側面図、第２図
は第１図の無段変速機の要部を拡大して示す縦断側面図
、第６図は本発明が改良を意図する従来の無段変速機を
示す縦断側面図である。 （１）・・・入力軸　（２）・・・出力軸　（３）・・
・円錐形転子　（４）・・・変速リング　（６）・・・
差動装置　（７）・・・入力軸側円板（８）・・・出力
軸側円板　０［Ｉ・・・中間ローラ　０１）・・・キャ
リア　Ｏ２・・・カム装置 第１図 第２図 ０ａ 第３図 ｚ　ＦＬ捲力０＄置 １１　（￥ＩｎＱ　Ｘ　　　　Ｙ Ｊ削を型ｆナク覧ｆFig. 1 is a longitudinal side view of a continuously variable transmission according to the present invention, Fig. 2 is an enlarged longitudinal side view of the main parts of the continuously variable transmission of Fig. 1, and Fig. 6 is an improvement intended by the present invention. FIG. 2 is a longitudinal sectional side view showing a conventional continuously variable transmission. (1)...Input shaft (2)...Output shaft (3)...
・Conical trochanter (4)...speed change ring (6)...
Differential device (7)... Input shaft side disc (8)... Output shaft side disc 0 [I... Intermediate roller 01)... Carrier O2... Cam device Fig. 1 Fig. 2 Figure 0a Figure 3z FL winding force 0$ position 11 (￥InQ

Claims (1)

【特許請求の範囲】[Claims] 円錐形転子の円錐面に摩擦係合する変速リングが出力部
材とされ変速リングを軸線方向に動かすことにより変速
リングの回転速度が変えられる形式をとる無段変速機の
変速作用部に差動装置が組合されていて変速作用部の変
速範囲が差動装置により変更され、変更された変速範囲
が出力軸の変速範囲とされるものにおいて、軸線方向に
動き得る状態において入力軸に駆動連結された入力軸側
円板と、軸線方向に動き得る状態において出力軸に駆動
連結された出力軸側円板と、これらの円板間に複数個配
置されていて動力の伝達作用と推力の伝達作用とを行う
中間ローラと、中間ローラの支持を行いつつ変速リング
と共に回転するキャリアと、出力軸側円板の外側に配置
されていて出力軸側円板、中間ローラおよび入力軸側円
板を経て変速作用部に摩擦係合用推力を及ぼすカム装置
とにより上記差動装置を摩擦伝動形式のものとして構成
したことを特徴とする、無段変速機。A variable speed change ring that frictionally engages with the conical surface of a conical rotor is used as an output member, and the rotational speed of the speed change ring can be changed by moving the speed change ring in the axial direction. When the devices are combined, the speed change range of the speed change action part is changed by a differential device, and the changed speed change range is the speed change range of the output shaft, the device is drivingly connected to the input shaft in a state where it can move in the axial direction. a disk on the input shaft side that is movable in the axial direction, a disk on the output shaft side that is drivingly connected to the output shaft in a state where it can move in the axial direction, and a plurality of disks arranged between these disks to transmit power and thrust. an intermediate roller that supports the intermediate roller and rotates together with the speed change ring; 1. A continuously variable transmission, characterized in that the differential device is configured as a friction transmission type by a cam device that exerts a thrust for frictional engagement on a speed change action section.
JP14401984A 1984-07-11 1984-07-11 Stepless speed changer Granted JPS6124871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14401984A JPS6124871A (en) 1984-07-11 1984-07-11 Stepless speed changer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14401984A JPS6124871A (en) 1984-07-11 1984-07-11 Stepless speed changer

Publications (2)

Publication Number Publication Date
JPS6124871A true JPS6124871A (en) 1986-02-03
JPH0434021B2 JPH0434021B2 (en) 1992-06-04

Family

ID=15352432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14401984A Granted JPS6124871A (en) 1984-07-11 1984-07-11 Stepless speed changer

Country Status (1)

Country Link
JP (1) JPS6124871A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0196560U (en) * 1987-12-17 1989-06-27
JPH03177647A (en) * 1989-12-02 1991-08-01 Kubota Corp Friction-type continuously variable transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0196560U (en) * 1987-12-17 1989-06-27
JPH03177647A (en) * 1989-12-02 1991-08-01 Kubota Corp Friction-type continuously variable transmission

Also Published As

Publication number Publication date
JPH0434021B2 (en) 1992-06-04

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